Grain-car door.



v A. G. SMITH.

GRAIN GAR DOOR.

APPLICATION FILED we. 5, 1909.

969,730. Patented Sept. 6, 1910.

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Patented Sept. 6, 1910.

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INUEZNTDH' flnion. C. Srm' "1 LLII'TNEZEEEJE A. C. SMITH.

GRAIN CAR DOOR.

APPLICATION FILED AUG. 5, 1900.

Patented Sept. 6,1910.

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UNITED STATES PATENT OFFICE.

ANTON CHRISTIAN SMITH, OF WINNIPEG, MANITOBA, CANADA, ASSIGNOR OF ONE-TI-IIRD TO THOMAS J. HOLLAND, F WINNIPEG, CANADA.

GRAIN-CAR DOOR.

T 0' all whom it may concern:

Be it known that I, ANTON CHRISTIAN SMITH, of the city ofWVinnipeg, inthe Province of Manitoba, Canada, have invented certain new and usefulImprovements in Grain-Car Doors, of which the following is thespecification.

My invention relates to grain car doors and the object of the inventionis to provide a door by which grain, coal, or such like produce can bereadily released from a car, particular care having been taken to avoidplacing undesirable obstructions of any kind within the car which wouldinterfere with the scoops which are at present used for cleaning thegrain out of the car, after it has finished running of its own accord.

A further object is to provide a simple door which can be readily placedin the inoperative position against the roof of the car. It consistsessentially in a door section adapted to pass between the door posts ofa car, metallic bars pivotally secured within vertically directed andopposing slots formed in the door posts, means controlled by a lever foroperating the bars, a cross rod supporting the door section in theclosed position and slidable within vertically directed grooves formedin the door posts, the parts being arranged and constructed ashereinafter more particularly described.

Figure 1 is a front elevation of a portion of a car showing one of mydoors as it appears in the closed position. Fig. 2 is an interior viewof the car, the door being shown as in Fig. 1. Fig. 3 is a verticalsectional view through the car, the section being taken in the planedenoted by the line Y Y, Fig. 1, and the upper section of the door beingshown in its open position. Fig. 4: is a horizontal sectional view takenin the plane denoted by the line X X, Fig. 1, the upper section of thedoor being removed.

In the drawings like characters of reference indicate correspondingparts in each figure.

1 and 2 represent the door posts of a car of which 3 is the upper crossbeam or lintel Specification of Letters Patent.

Application filed August 5, 1909.

Patented Sept. 6, 1910.

Serial No. 511,297.

.and l the door sill, which portions bound the usual door way opening 5.

6 is the roof of the car and 7 are the roof, supporting beams.

8 is the car floor suitably supported on the usual beam 9.

10 are the outer face boards at the sides of the door posts, and 11 isthe inner wall of the car.

The door is formed from upper and lower sections 12 and 13,respectively, the lower section being designed to pass between the doorposts, and the upper one to rest with its ends against the inner facesof the posts and with its lower edge overlapping the upper edge of thelower section thereby for1n ing a closed joint.

1 1 is a cross rod having its ends received within vertically directedgrooves 15 formed in each of the door posts the lower ends of suchgrooves terminating at a point slightly above the lower section whenclosed, so that the lower section of the door is practically suspendedfrom the rod in its lower position, as later explained.

Straps 16 are firmly bolted to cross strips 17 appearing at the ends ofthe section, such straps being secured to the rod thereby hinging thesection on the rod.

The upper ends of the grooves turn backwardly on themselves at 18 toform a pocket at 19 to receive the ends of the rod when the section isswung to the ceiling.

20 and 21 are bars located within slots 22 formed in the door post, suchbars having their upper ends pivoted to posts at 21 and their lower endsturned at right angles at 22 and passing beneath the floor 8, it beingunderstood that the floor and the adjoining beam are cut away to allowthe bar to pass beneath the floor. Each bar is supplied with an angularnotch 23 and the lower section of the door is fitted with slotted bars 21 having their ends wedge-shaped at 25. The bars are held to the doorsby adjustable bolts 26.

27 is a plate secured to the beams 9 and appearing centrally beneaththe. door, said plate having an extending arm 28 over which the leverhereinafter referred to slides.

29 is a vertically directed post rotatably Q7 see s secured to the plate27 at its lower end and having a cross arm 30 secured to its upper end,said cross arm being united by links 31 and 32 to the inwardly directedends 22 of the bars 20 and 21 respectively.

38 is a lever fastened firmly to the post and sliding against the plate28, said lever appearing beneath the car.

84; and 35 are straps secured firmly to the upper section 12 of the doorand hingedly secured to the lintel 3 whereby the section can be swunginwardly toward the roof of the car when desired. I

86 and 37 are depending hooks pivotally secured to one of the beams 7and adapted to receive the lower edges of the respective sections whenthey are swung to the open position.

In order to better understand the invention I will now describe itsoperation assuming the car filled with grain. 'Io release the door it isnecessary to pull the lever from the position shown in dotted outline inFig. 4 toward the side of the car. This motion causes the bars 20 and 21to recede gradually within the slots and finally to disappear totallywithin the door posts. When this occurs the lower section of the door isfree to swing outwardly thereby allowing the grain within the car toflow out. After the upper section of the door has been swung and securedto the roof of-the car, the lower section is raised so as to, bring theends of the rod within the pockets 19, and then the lower edge of thesection is swung upwardly to the roof of the car and fastened by meansof the hook 37. To close the sections it is only necessary to releasethem from the hooks and place them in the original position, the leverhaving previously been pressed inwardly so as to swing the lower ends ofthe bars out of their slots.

I/Vhat I claim as my invention is:

1. In a grain car door, the combination with the door post of the car,of the door section shorter than the space between the door posts, saiddoor posts having vertical slots therein, bars in said slots havingtheir upper ends pivoted therein and their lower ends extending belowthe bottom of the car, means engaging the said lower ends for movingthem toward and away from each other, as and for the purpose specified.

2. In a grain door, the combination with the door posts of a car, of adoor section adapted to pass between the door posts and pivotallysuspended upon a horizontal rod vertically slidable within groovesappearing in the door posts, a set of similar opposing bars operatingwithin vertically directed slots formed in the door posts, said barsbeing pivotally secured at theirupper ends within the slots and havingtheir lower ends passing downwardly beneath the floor of the car, andturned at right angles to the body portions thereof, an actuating leverinterconnected with the lower end of the bars whereby the bars can bewithdrawn or advanced within the slots, as and for the purposespecified.

3. In a grain door, the combination with the door posts of a car, of adoor section adapted to pass between the door posts and pivotallysuspended from a cross rod vertically movable within grooves formed inthe door posts, an opposing set of similar bars located within slotsformed in the door posts, the upper ends of said bars being pivoted oncross bolts and the lower ends being directed through the car fioor andturned inwardly at right angles to the body portions thereof, a platesecured to the floor supporting beams, a vertically directed androtatably mounted post carried by the plate, a cross arm secured to theupper end of the post and united through links with the inwardlydirected ends of the bars, and a lever secured to the post and adaptedto actuate the links, as and for the purpose specified.

Signed at WVinnipeg, in the Province of Manitoba, this 19th day of June1909.

ANTON CHRISTIAN SMITH.

In the presence of- G. L. BoxBUReH, M. A. SOMERVILLE.

